ah that's really funny because the drawing bears a striking resemblance to the character, plus, a quote commonly associated with him is "i believe in you," which is said about him by another character ahh. it's really great, the recent movie was fantastic, if you don't feel like delving into a book over a thousand pages long.
Yeah these are pretty average sketches, they take anywhere from 5-10 minutes. The longest one on the page is the bottom right hand sketch at about 15 minutes. I usually do these during lectures in classes and stuff (it's my primary work time haha!)